My RC PRO Controller is not working

Hello! I have a DJI MAVIC 3 drone and recently I got a stimulator to practice my flying skills but I have a problem, even tho my Mac Book recognizes the controller, I still can't use it to practice, it just shows like there is no controller connected. The stimulator I am using is Uncrashed FPV Drone, but I also tried to test it on DJI Assistance 2, can someone help me fix this issue please.